Stillen chargecooler tank leaking

Maddog · 04-03-2016, 01:26 PM

I think the cap is leaking on my stillen chargecooler tank

Is this a common issue , is there a better cap available

It says that its rated to 16 psi on the cap which would make it capable of holding the coolant in the tank at over 100 degrees c , does the coolant get anything like that temperature?

If not does the system even need a vented cap ? Could I just get an alloy tank made up and use that instead ?

blobbish · 04-04-2016, 09:27 AM

I have a temp gauge in my tank (as you know) and after a hard drive and it sitting soaking heat for an hour I don't see the reservoir get anywhere near 40*C nevermind 100*C. Cant comment on pressure though.

I recall that your kit is running the stillen cooler, but I don't think that can make that much difference.

B&W_Evader · 04-04-2016, 09:45 AM

I don't think making it a closed system is a good thing. I wonder what the temp (and then pressure) could go up to if you have a pump failure.

ANMVQ · 04-04-2016, 12:05 PM

The system is not closed, I found out the hard way (water go it) the is a open hole on top of the SC. The right brass allen bolt has a hole in the middle :/ IT's open 100 % of the time.

Maddog · 04-04-2016, 02:57 PM

I got the opportunity to check Blobbish's car today , his cap is different , was much tighter than mine and the rubber washer looks thicker, also the edge of the top of the tank has a wider shoulder meaning greater surface area for the washer to seal

My car has an early kit around three years old and has done about 30,000 miles , his kit is new

It could be that the cap has been over tightened in the past and the thread is damaged.

I have ordered some nitrile sheet so will fabricate some new thicker washers and see if that helps

ANMVQ · 04-04-2016, 04:24 PM

I would maybe change the whole tank to one that holds more coolant

Maddog · 04-05-2016, 04:29 AM

Any suggestions of one? I may well get one made up out of alloy

04-03-2016, 01:26 PM	#1 (permalink)
Maddog Base Member Join Date: Dec 2013 Location: Uk Posts: 94 Drives: 2012 370z GT a/t Rep Power: 12	Stillen chargecooler tank leaking I think the cap is leaking on my stillen chargecooler tank Is this a common issue , is there a better cap available It says that its rated to 16 psi on the cap which would make it capable of holding the coolant in the tank at over 100 degrees c , does the coolant get anything like that temperature? If not does the system even need a vented cap ? Could I just get an alloy tank made up and use that instead ? __________________ Eibach sway bars and 25mm spacers, Stillen kit , Level 10 trans, Quaife diff

04-04-2016, 09:45 AM	#3 (permalink)
B&W_Evader Track Member Join Date: Aug 2011 Location: CA Posts: 972 Drives: slower than before Rep Power: 387	I don't think making it a closed system is a good thing. I wonder what the temp (and then pressure) could go up to if you have a pump failure. __________________ \|RIP\|6spd-sport\|OSG-LSD\|XP8\|RBF600\|Eibach Sways\|RE-71R\|FI-34Row\|Gen3-CAI\|Yaw P.S.\|

04-04-2016, 12:05 PM	#4 (permalink)
ANMVQ A True Z Fanatic Join Date: Mar 2011 Location: Framingham MA Posts: 2,732 Drives: 2014 Q50 AWD Rep Power: 19	The system is not closed, I found out the hard way (water go it) the is a open hole on top of the SC. The right brass allen bolt has a hole in the middle :/ IT's open 100 % of the time. __________________ 14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

04-04-2016, 02:57 PM	#5 (permalink)
Maddog Base Member Join Date: Dec 2013 Location: Uk Posts: 94 Drives: 2012 370z GT a/t Rep Power: 12	I got the opportunity to check Blobbish's car today , his cap is different , was much tighter than mine and the rubber washer looks thicker, also the edge of the top of the tank has a wider shoulder meaning greater surface area for the washer to seal My car has an early kit around three years old and has done about 30,000 miles , his kit is new It could be that the cap has been over tightened in the past and the thread is damaged. I have ordered some nitrile sheet so will fabricate some new thicker washers and see if that helps __________________ Eibach sway bars and 25mm spacers, Stillen kit , Level 10 trans, Quaife diff

04-04-2016, 04:24 PM	#6 (permalink)
ANMVQ A True Z Fanatic Join Date: Mar 2011 Location: Framingham MA Posts: 2,732 Drives: 2014 Q50 AWD Rep Power: 19	I would maybe change the whole tank to one that holds more coolant __________________ 14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

04-04-2016, 09:27 AM	#2 (permalink)
blobbish Base Member Join Date: Feb 2014 Location: UK Posts: 58 Drives: 370z Black Edition Rep Power: 15	I have a temp gauge in my tank (as you know) and after a hard drive and it sitting soaking heat for an hour I don't see the reservoir get anywhere near 40C nevermind 100C. Cant comment on pressure though. I recall that your kit is running the stillen cooler, but I don't think that can make that much difference.

04-05-2016, 04:29 AM	#7 (permalink)
Maddog Base Member Join Date: Dec 2013 Location: Uk Posts: 94 Drives: 2012 370z GT a/t Rep Power: 12	Any suggestions of one? I may well get one made up out of alloy __________________ Eibach sway bars and 25mm spacers, Stillen kit , Level 10 trans, Quaife diff

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